Zipper Oyster - Fossil a grade Mined from: Brazil

Mined from: Brazil

Approximate weight of 1 piece: 15g

Ball burrs are essential for carving

Chemical Composition: PbMoO4

Origin: Boekenhouthoek

Zipper Oyster - Fossil a grade Mined from: BrazilProduct Title: Fossil Oyster (Zipper Oyster) Origin: Marovoay, Mahajanga Province, Madagascar Era: Late Cretaceous Geographic Age: 66 mya 160 mya Description: The ribbed formation gave it the nickname "cockscomb oyster". The zig zag joint between the two shells stopped rough dirt and debris from entering the shell and damaging its soft body. Like modern day oysters, it lived in shallow coastal waters including the area between high and low tide and it